Counter molding machine



1941- c. A. THURSTON 2,230,632

COUNTER MOLDING MACHINE Filed Dec. 28, 1939 3 Sheets-Sheet l I L i i g i \I O L; A? O l ra/@7120? I CHARLES 77/093 70/) 01 I WWW/49%) Feb. 4, 1941.

C. A. THURSTON COUNTER MOLDING MACHINE File d Dec.. 28, 1939 3 Sheets-Sheet 2 Ewe 71%? CHARL ES A. 771093 ro/v' Feb. 4, 1941- C. A, THURSTON COUNTER MOLDING MACHINE 3 Sheets-Sheet 3 Filed Dec. 28, 19:59

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iv/e19 Patented Feb. 4, 1941 2,230,632

UNITED STATES PATENT OFFICE COUNTER MOLDING MACHINE Charles A. Thurston, Haverhill, Mass, assignor to Lowell Counter 00., Lowell, Mass, a corporation of Massachusetts Application December 28, 1939, Serial No. 311,361

2 Claims. (Cl. 12-66) This invention relates to improvements in a mounting of the molds is that customarily emcounter molding machine, and more particularly ployed and need not be described in detail. a machine for molding shoe quarters. In a prior construction the male plug die abuts Counter molding machines of the type which at its rear face against a part of the frame and 5 are adapted to shape the counter and turn in a it is necessary to use shims to move the die away 5 heel seat flange are in common use and have in from the frame in order to obtain a properly recent years been employed through the design wiped flange as the wiper plate slides in fixed of special dies to mold complete shoe quarters ingrooves and cannot be adjusted with respect to cluding the lining, counter and upper leather. the male plug. In the improved design herein In such machines the female dies are closed disclosed, :a wide slot 22 is cut in the frame in 10 by pressure about the male die and a wiper plate back of the male die as shown in Fig. 4. One imslides down to turn in the flange. It is found portant advantage of the slot 22 is that it permits necessary to place shims between the upper end the insertion of the complete quarter portion and of the male die and a part of the frame in order upper of a high shoe which cannot be molded to obtain the desired wiping pressure. This stop where the frame is closed in back of the male die. 15 portion of the frame prevents use of the machine In order to form the necessary mounting for an for molding quarters of high shoes. abutment for the male die, a pair of brackets 24 It is an object of this invention to provide an are fixed to the side of frame ill by the bolts 26 improved counter molding machine in which the and a cross plate 28 is attached to the brackets 26 reaction of the male die .to the wiping pressure as by the bolts 30. The plate 28 is bored to receive 20 the flange is turned is received by an adjustable the horizontally movable abutment rod 32 which stop provided with means for manual setting peris formed at its front end with an abutment stop mitting close adjustment of the wiping pressure 34 against which the male plug die seats. The to suit the particular conditions of the material rear portion of rod 32 is threaded as at 36 to en- 5' that is to be molded. gage a knurled adjusting nut 38 received in an It is a further object to mount the stop for the opening 40 formed in a boss 42 on the rear face male die in such a manner that it will not interof plate 28. The rod has a longitudinal keyway fere with the molding of quarters for high shoes. 44 which is engaged by a pin 46 on a screw 48 Inthe drawings: threaded into the plate 28. A wing nut 50 is Fig. 1 is a front elevation of the upper end of a threaded onto the rod 32', and when tightened 30 molding machine; against the boss 52 on the front face of plate 28 Fig. 2 is a fragmentary front elevation showing serves to hold the rod 32 and the abutment stop the frame and stop, the dies and wiper plate being 34 in adjusted position.

removed; The position of the male plug 12 with respect Fig. 3 is a fragmentary side elevation; v to the female molds I4 and the wiper plate It may 35 Fig. 4 is a horizontal section; be closely adjusted by means of the adjusting nut Fig. 5 is an elevation of the mounting plate for 38 and locking wing nut 50. The time of the the stop partially in section to show the pin which operator formerly required to make adjustments holds the stop against rotation; and is considerably reduced and better results in Fig. 6 is an enlarged side elevation of the stop molding can be obtained. The opening behind 40 i the male die permits the insertion of counters or The counter molding machine includes aframe assembled quarters for molding in whole or in m 1 plug die I2 f ale id molds I4 d. part and certain molding operations can be cara vertically slidable wiper plate It. While the fled q which could not be performed on prior female molds are Open, the Counter or complete machines, such as the molding of the counter por- 45 shoe quarter l8, which may have been prelimif W quarters for hlgh shoesnarily clam-shelled, is bent and inserted by the i g g' molding machine a frame a fingers Into posltlon Over male male die movably mounted with respect to the plug lea'vmg po'rtlon of i edge protrudmg. to frame, female mold members adapted to close unform the flange. Operating of the machine der" pressure around said male die, a vertically causes the female molds to close under heavy pres- Slidable Wiper plate for fernin a flange on the Sure a the W p plate is moved downwards article to be molded, said frame having an openthe flat vertical faces of the mold parts to turn in ing behind t male die t permit t molding of 55 the flange 20. The operating mechanism and the quarters for high shoes. a transverse plate fixed 55 to the side Walls of the frame spaced rearwardly from said mold members, a rod having an abutment at its forward end mounted in said plate, and means for manually adjusting said rod in a horizontal direction to vary the position of the male die and the pressure of the wiper plate during the operation of forming the flange.

2'. In a counter molding machine, a frame, a male die movably mounted with respect to the frame, female mold members adapted to close under pressure around said male die, a vertically slidable wiper plate for forming a flange on the article to be molded, said frame having an opening behind the male die to permit the molding of quarters for high shoes, a transverse plate fixed to the side walls of the frame, an abutment rod mounted in said plate, said male die being adapted to seat against said abutment rod at its forward 5 end, means for holding said rod against rotation with respect to said plate, an adjusting nut received in said plate and having threaded engagement with said rod in order to vary the position of said rod and a locking nut for fixing the ad- 1 justed position of said rod.

CHARLES A. THURSTON. 

